Features:Compact structure, light weight, easy operate, low maintenance cost;With digital display counter: it can display at any time, and can accumulate work times;Flow and pressure can be adjusted step-lessEquipped with emergency unloading valve: in case of an emergency, it can be load-off instantly;In low pressure, it will be flow-converging of two pumps; In high pressure, there is only one pump work. Low pressure and large flow, high pressure and low output;With full-hydraulic shaft device, stable and reliable operation;Cooling type: water-cooling and air cooling; Suitable for hot and cold areas.